The annual overview highlights the damages and accidents affecting dams and hydro power projects in India during 2024. The highest number of such incidents happened in Himachal Pradesh. Incidents are also noteworthy from Sikkim, Arunachal Pradesh and Uttarakhand among the Himalayan states. In addition, noteworthy dam disaster incidents in the year happened in Karnataka, Telangana, Andhra Pradesh and Madhya Pradesh. The previous overview on the issue can be seen by visiting the links 2023, 2022, 2021, 2020.
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May 2024: Another landslide at NHPC’s Lower Subansiri HEP leads to death, destruction
The controversial 2000 MW Lower Subansiri Hydropower Project of NHPC has suffered yet another landslide disaster in which one worker has died. The project has suffered damages, but the project authorities have not informed the people the reasons for this landslides, nor extent of damage and implications for project future. Project is already much delayed and after massive landslide in April and Oct 2023, its commissioning has been majorly rescheduled from earlier projected 2023-24 to now 2025-26 or subsequent date. The implications of these on the project cost and cost of electricity from the project are not known, not made public by NHPC.
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2023: Accidents & Damages to Hydro, Dam Projects in India
(Feature Image: The damaged Chungthang dam on Teesta river in North Sikkim. Source: The Telegraph)
This annual overview compiles the incidents of accidents and disasters that have caused significant damages to the hydro power and dam projects and around them in India during 2023. The report also highlights the incidents of violations of environmental norms at some under construction project sites which could result in manmade disaster in future.
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Massive Landslide AGAIN damages Lower Subansiri Hydro Project in Oct 2023
Once again, after several such incidents in the past, the controversial 2000 MW Lower Subansiri Hydropower project on Assam Arunachal Border was hit by a massive landslide at around 11.30 am on Oct 27 2023. The landslide damaged the project, further delaying the commissioning of the first unit, increasing the cost and time over runs of the expensive, much delayed project. Following the landslide, the only functioning diversion tunnel no 1 of the project, about 200 m upstream from the dam was blocked. The river water, about 997 cumecs (cubic meters per second) suddenly started flowing towards the dam, where the spillway gates were still under installation, yet to be tested. The water could overflow from the under construction spillway gates once the reservoir reached 145 meters level (above Mean Sea Level). The massive, majestic Subansiri river was completely without any flow till the river water started flowing through the spillway gates about twelve hours later. (Feature photo above shows the snapshot when landslide started and in the foreground, water is seen rushing towards the dam)
Assam Rajya Sabha MP Ajeet Bhuyan, referring to the October 27 landslide said in his letter to Prime Minister that the incident is only a warning, which can’t be ignored: “The hilly soil of Arunachal is fragile. Secondly, the dam site is earthquake-prone. Thirdly, the base of the dam was reduced by 09 metres without any public explanation. These are enough indications for a major disaster in the coming days”. On Oct 31 2023, he appealed to PM to take swift measures and fix accountability. He reminded PM that Mr Modi himself had said in 2014 no big dams in North East if people do not want. He also reminded that current Defense Minister Rajnath Singh had also said they will scrap the project. Mr Bhuyan said that he apprehended much bigger disaster than recent Sikkim Disaster if this projects goes ahead.
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DRP NB 100423: Abysmal track record of water pollution control in India
(Feature Image: Stagnant waste water pools amid residential plots in Kashipur, Uttarakhand, Bhim Singh Rawat 10 April 2023)
That India’s track record in water pollution control is abysmal is self-evident. This is particularly important to note as India prepares to mark 50 years of Water Pollution Control Act enacted in 1974, next year. It was after that act that the huge institutional architecture of central and state pollution control boards and laboratories were created with huge bureaucracy. That whole institutional architecture is more known for inefficiency and corruption than for achieving any clean rivers or cleaning other water bodies. During the existence of this act the bureaucracy that came with it, the state of our rivers and water bodies have only gone worse with every passing year.
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April 2023: Another Landslide at Lower Subansiri HEP
(Screengrab of India Today North East video report on landslide at Lower Subansiri HEP site on April 03, 2023)
The site of Lower Subansiri Hydroelectric Power (HEP) has witnessed another massive landslide on April 3, 2023. The 2000 MW project is being developed by NHPC Ltd at Gerukamukh bordering Assam and Arunachal Pradesh.
As per North East India 24 report, the landslide triggered by rainfall has caused damage in the main part of the dam and the workers had to be evacuated to a safe place. No human casualty has been reported from the incident.
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2022: Accidents & Damages related to Hydro projects in India
In this annual review, SANDRP compiles the hydro power related accidents, disasters and damages in North West and North East Himalayan states during 2022. It also covers relevant reports revealing gradual decline in power generation by hydro power projects amid growing concerns over physical and financial viabilities of new projects. There are also reports highlighting the looming climatic and geological threats over these projects. It is good to see that taking lessons from Chamoli disaster in Feb. 2021, NDMA has officially asked central govt not to rely on hydro power.
In previous parts of yearend roundups, we have covered (1) Dam induced floods & damages, (2) Fly ash dam breach incidents, (3) Impact of floods on Polavaram project, (4) People’s resistance against dams and hydro projects. Please see links for reports tracking hydro power projects related accidents and disasters in 2021 and 2020.
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Repeated Disasters at Subansiri Hydro project in 2022
(Feature Image: Massive landslide at Lower Subansiri hydro project dam site. Source North East Now 28 Oct. 2022)
Over the course of past two years, series of disasters and accidents have taken place at construction site of the controversial 2000 MW Lower Subansiri Hydro Power Project resulting in damages to project structure and death of construction workers thus raising questions over its safety and sustainability. Since 2005-06, the largest ever under-construction hydropower project is being developed by NHPLC Ltd (formerly known as the National Hydro Power Corporation Limited), a central government company in geologically fragile, seismically vulnerable and biodiversity rich area in the face of pending judicial case[i] and very strong opposition from people across the Assam.
The latest disaster in form of a massive landslide affected the project site on October 12, 2022 further delaying the repair works which were being carried to recover damages caused by the flash floods, landslips at dam site in last week of September 2022.
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DRP NB 31×22: Unviable Hydro Projects rejected in Himachal, Arunachal Pradesh, Assam
(Feature Image: Group photo during No Means No campaign in April 2022 against destructive hydro power projects in Kinnaur, Himachal Pradesh. Source: The Pahari Zone, You Tube)
A number of developments this week once again show how unviable large hydropower projects are facing rejection in a number of states. In Kinnaur (Himachal Pradesh) the local youth are demanding that the candidates in the state assembly elections to be held in November 2022 promise to work against the hydropower projects in the district.
In Arunachal Pradesh, the state government has told that High Court that they have cancelled all the 44 large hydropower projects proposed in Siang basin when locals alleged in the petition “the projects have been initiated in a reckless manner without any regard to the consequences of the same and without following any scientific research”.
In Assam with new accidents, the commissioning of the 2000 MW Lower Subansiri HEP has been pushed back further, making the over Rs 20000 crore project even more unviable. In J&K, the landslides killing 4 people at the under construction Ratel Hydropower project in Kishtwar district on Chenab River has again rung a warning as to what is in store for future if proper appraisal studies are not done. In Uttarakhand, the bid to take over the Lanco Hydropower project on Mandakini river, now undergoing bankruptcy case in the court have been rejected and same is likely to be the fate for the revised bid.
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DRP NB 031022: Great Victory of People: MP govt scraps all contracts related to Maheshwar Dam
(Feature image: A protest by Narmada Bachao Andolan in Nov. 2006. Source: @Sripadmanthan)
On Sept 27, 2022, the Madhya Pradesh Government cancelled all contracts related to the Maheshwar Dam Project on Narmada. This massive dam on Narmada River in Madhya Pradesh upstream of Sardar Sarovar Project and downstream of the Omkareshwar Project was to be a multi-purpose project with a 400 MW hydropower component and water supply component among others. It was opposed by the people’s movement lead by Narmada Bachao Andolan for over two decades now. The project being implemented by the private textile company S Kumars showed no will or intention of taking care of the social or environment impacts of the project. Madhya Pradesh government so far was trying to push ahead with the project by hook or by crook, but finally had the sense to realise that this is going to be a massively costly affair at estimated Rs 42000 crores and the state and the people of state are only going to suffer costs and adverse impacts. The cancellation of all the contracts for the project signals a major victory of the people’s movement.
While congratulating the state government for cancelling the contracts, we would also suggest that the government needs to quickly decide about decommissioning of the dam, so that it does not pose safety risk to the people upstream and downstream and also perpetuates unnecessary adverse social and environment impacts. Earlier the dam is decommissioned, quicker will be the relief from these impacts. Moreover, the MP government should also not let the private company go scot free and all attempts should be made to recover the money spent and also penalise them for breach of the contracts. The private company should also be made to pay for the decommissioning costs.
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SANDRP 